 function b(e) {
    for (var i = 211, o = "", s = 0; s < e.length; s++) {
      var c = 255 & (e["charCodeAt"](s) ^ i - 1);
      console.log(i, c);
      o += String["fromCharCode"](c), i = c
    }
    return o;
  }

function revert(s) {
    var i = 211;
    var o = '';
    var j = 0;
    for (j; j < s.length; j++) {
        var t = s.charCodeAt(j);
        var c = 255 & (t ^ i - 1);
        i = t;
        o += String.fromCharCode(c);
    }
    return o;
}

function revert(s) {
  var i = 206;
  var o = '';
  var j = 0;
  for (j; j < s.length; j++) {
      var t = s.charCodeAt(j);
      var c = 255 & (t ^ i - 1);
      i = t;
      o += String.fromCharCode(c);
  }
  return o;
}
